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The 500 Internal Server Error message might be seen in any number of ways because each website is allowed to customize the message. Here are several common ways that you might see the HTTP 500 error:
The 500 Internal Server Error is a very general HTTP status code that means something has gone wrong on the web site's server but the server could not be more specific on what the exact problem is.
Most of the time, "gone wrong" means an issue with the page or site's programming, nothing you have anything to do with.
Note: More specific information about the cause of a particular HTTP 500 error is often provided when it occurs on a server using Microsoft IIS software. Look for numbers after 500 as in HTTP Error 500.19 - Internal Server Error which means Configuration data is invalid. You can see a complete list here.